You opened an account and deposited X Dollars on January 1, 2002 in National City Bank. Any balance in the account will earn 5% per year. You withdrew $500 on January 1, 2006 and $500 on January 1, 2008. You closed out this account on January 1, 2011 and received $700. How much did you initially deposit (X) in National City at the time you opened the account?

The U.S. federal ban on assault weapons expired in September 2004, which meant that after 10 years (since the ban was instituted in 1994) there were certain types of guns that could be manufactured legally again. A poll asked a random sample of 1,200 eligible voters (among other questions) whether they were satisfied with the fact that the law had expired. The datafile linked below contains the results of this poll (Data were generated based on a poll conducted by NBC News/Wall Street Journal Poll). We would like to estimate p, the proportion of U.S. eligible voters who were satisfied with the expiration of the law, with a 95% confidence interval.

M.E.= 2.9%

(a) How many of the 1,200 sampled voters were satisfied?

(b) What is the sample proportion (p-hat) of those who were satisfied?

(c) What is the 95% confidence interval for p? Interpret this interval.

In question 1 you found that the margin of error of this poll was about 2.9%. What is the margin of error of the confidence interval you found in question 2?

In 2003/2004, three administrations ago, Vision 20-20 – a strategy for development and
progress, aimed at bringing Nigeria among the top 20 industrialized nations in the world
by 2020 A.D. was drafted. A positive challenge to entrepreneurial and functional education
in Nigeria. The vision sets out a 7-point Agenda that will drive the process of achieving
national objectives. It consists of Goals, Macroeconomic framework, Financial and plan
implementation strategies, to fast track the policies. With the aid of a well-labeled chart,
show the “NEEDS” at a glance.

Clinical Trial

Between 2004 and 2007, the National Institutes of Health conducted a STEP vaccine clinical trial—Phase IIB "test-ofconcept" study.

The STEP study is the name of a clinical trial to test an experimental human immunodeficiency virus (HIV) vaccine. The STEP study enrolled 3,000 participants at sites in Australia, Brazil, Canada, the Dominican Republic, Haiti, Jamaica, Peru, Puerto Rico, and the United States. The study was designed to test an HIV vaccine, which aimed to stimulate production of immune system T-cells that can kill HIV-infected cells.

Based on its first evaluation of vaccine efficacy, the findings showed there were 24 cases of HIV infection among the 741 volunteers who received at least one dose of the investigational vaccine compared with 21 cases of HIV infection among the 762 volunteers who were vaccinated with the placebo. In volunteers who received at least two vaccinations, there were 19 cases of HIV infection among the 672 volunteers who received the investigational vaccine and 11 instances of HIV infection among the 691 volunteers who received placebo. The study investigators of the vaccine trials have decided to cease immunizations and are contacting study volunteers to inform them of the developments.

Based on your research, understanding, and above information, answer the following questions:

Prior to beginning this study, how would you have described the risks and benefits of the study to participants?

What are the ethical issues surrounding this study at the beginning and when the decision was made to terminate the study?

Volkswagen saw a 95% drop in its fourth quarter profits in 2004 after an unexpected surge in the value of the Euro left the company with losses of $1.5 billion.

1. What is hedging? Explain how Volkswagen's failure to fully protect itself against foreign exchange fluctuations had a negative effect on the company? What can Volkswagen and other companies learn from this experience?

2. Why was Volkswagen so vulnerable to the change in the value of the Euro against the US Dollar relative to the US Dollar?

3. In 2015 and 2016 strong dollar affected several US companies. Please see the one of the examples in the following links (2015 and 2016) where the strong dollar hurt the company. What can this company do to protect itself from exchange rate fluctuations? Since the beginning of 2017, the dollar has been weakening. What does that mean for US companies? How will the weaker dollar affect US businesses?  

only need to anwser to question 3

Moretti (2004) finds that higher education has significant positive externalities on wages of all workers. This suggests that

Group of answer choices

High skill and low skill workers are complements in production.

A larger share of workers with higher education causes employers to choose labor-biased technology.

A larger share of workers with higher education increases the productivity of all human capital levels.

Workers can 'pick up' human capital from working with high skill co-workers.

Membrane Protein Census

(a) Table 1 of Mitra et al. (2004) reports the mass ratio of proteins and phospholipids in the membranes of various cells and organelles. Use the asserted 2.0mg of protein for every 1.0mg of phospholipid in the E. coli membrane to compute the areal density of membrane proteins and their mean spacing. Make a corresponding estimate for the membrane of the endoplasmic reticulum using the fact that the mass ratio in this case is 2.6. Explain all of you assumptions in making the estimate.

(b) Dupuy and Engelman (2008) report that the area fraction associated with membrane proteins in the red blood cell membrane is roughly 23%, while the lipids themselves take up roughly 77% of the membrane area. Use these numbers to estimate the number of membrane proteins in the red blood cell membrane and their mean spacing. Explain all theassumptions you make in constructing the estimate.

Where does all that Halloween candy go? The October 2004 issue of Readers' Digest quoted that "86% of parents admit taking Halloween candy from their children's trick-or-treat bags." The source of information was the National Confectioners Association. Suppose that 25 parents are interviewed. What is the probability that 20 or more took Halloween candy from their children's trick-or-treat bags? (Give your answer correct to three decimal places.)

A particular report from 2004 classified 721 fatal bicycle accidents according to the month in which the accident occurred, resulting in the accompanying table.

(a) Use the given data to test the null hypothesis H₀: ?₁ = 1/12, ?₂ = 1/12, . . . , ?₁₂ = 1/12, where ?₁ is the proportion of fatal bicycle accidents that occur in January, ?₂ is the proportion for February, and so on. Use a significance level of 0.01. (Use 2 decimal places.)
?² =  

(b) The null hypothesis in Part (a) specifies that fatal accidents were equally likely to occur in any of the 12 months. But not all months have the same number of days. Test the hypotheses proposed in H₀: ?₄ = ?₆ = ?₉ = ?₁₁ =

? 0.082, ?₂ =

? 0.079, ?₁ = ?₃ = ?₅ = ?₇ = ?₈ = ?₁₀ = ?₁₂ =

? 0.085 using a 0.05 significance level. (Use 2 decimal places.)
?² =  

1. In 2004, the University of California education system drastically cut enrollment due to significant state budget cuts and asked 7,600 applicants to defer enrollment for two years after completing two years at a community college. Tuition costs remained fixed by the state.
   • Demonstrate the situation described with supply and demand curves, carefully labeling any excess supply or demand for college admission.
   • What is the market solution to the excess demand for college?
   • What is a possible reason the market solution was not pursued?